Description Loeblich, A. R., Tappan, H. N., 1987: Foraminiferal genera and their classification. Van Nostrand, Reinhold Co. New York 1728 pp. Plate 217, Figs. 16-18: M. Carboniferous (Bashkirian), Donbas. 16. Tangential section x 260: 17. horizontal section of holotype
x 260, 18. axial section x 260 (from Reytlinger,1956).